So Idk if this is a normal noise but I just now noticed it...
After I drive my car and go to turn it off, right after its off it makes a loud noise that sounds like a marble being dropped into the engine bay.. it like bounces. It only happens if the car is warm and been driven, no noise If I just turn it on then off.
It sounds a lot different than parts cooling after a drive because its consistent and always at the same time after turning off.
I just turned past 17,000 miles.